搜索结果: 1-15 共查到“地质学 surface”相关记录145条 . 查询时间(0.187 秒)
Partly melted rocks under Earth’s surface offer insights into what makes plate tectonics possible（图）
地球表面 板块构造 构造地质学
2023/6/26
Using seismic waves, scientists detect widespread partially molten rock hidden under the Earth’s tectonic plates in a new way, a step in settling a long-held geological debate that has big implication...
Study explores how rock expands near soil surface in Sierra Nevada（图）
rock expands soil surface Sierra Nevada
2019/10/18
A University of Wyoming researcher and his team have discovered that weathering of subsurface rock in the southern Sierra Nevada Mountains of California is due more to rocks expanding than to chemical...
ASSESSING THE IMPACT OF CANAL NETWORK ON SURFACE WATERLOGGING USING REMOTE SENSING DATASETS IN ROHTAK DISTRICT, HARYANA
Waterlogging Canals Remote Sensing GIS Rohtak
2019/2/27
Remote Sensing is a very reliable and expeditious technique for assessment and mapping of surface waterlogged areas. In this study band ratio based NDWI index (Normalized Difference Water Index) was u...
COPERNICUS BIG DATA AND GOOGLE EARTH ENGINE FOR GLACIER SURFACE VELOCITY FIELD MONITORING: FEASIBILITY DEMONSTRATION ON SAN RAFAEL AND SAN QUINTIN GLACIERS
Big Data Google Earth Engine Sentinel-1 Glacier velocity field SAR off-set tracking San Rafael Glacier San Quintin Glacier
2018/5/11
The glaciers are a natural global resource and one of the principal climate change indicator at global and local scale, being influenced by temperature and snow precipitation changes. Among the parame...
Surface deformation of active volcanic areas retrieved with the SBAS-DInSAR technique: an overview
Ground deformation Differential Interferometry
2015/9/1
This paper presents a comprehensive overview of the surface deformation retrieval capability of the Differential
Synthetic Aperture Radar Interferometry (DInSAR) algorithm, referred to as Small BAsel...
Estimating Limiting Nutrient Loadings in an Interacting Surface and Ground Water Basin
L-THIA model water quality sediment Snake River Basin Idaho
2015/8/11
Watershed management requires the determination of both point and non-point sources of pollution within a watershed. The primary non-point source pollutants in a typical watershed are nutrients (mainl...
Re–Os isotope geochemistry in the surface layers of ferromanganese crusts from the Takuyo Daigo Seamount, northwestern Pacific Ocean
ferromanganese crust Re and Os isotopes geochemistry Takuyo Daigo Seamount northwestern Pacific Ocean
2017/4/10
Os isotope compositions in ferromanganese crusts (Fe–Mn crusts) have been used for the dating of model ages from
present to the Late Cretaceous. This dating method assumes that the Fe–Mn crusts prese...
Apparent increase in Mn and As accumulation in the surface of sediments in Lake Biwa, Japan, from 1977 to 2009
ake Biwa manganese arsenic temporal variation environmental change
2017/4/11
An apparent temporal increase in Mn and As in a thin surface layer (ca. 2 cm) of sediments in Lake Biwa, Japan, was
observed by comparing depth profile data from 1977 and 2009. By our estimation, sev...
Temporal variation of 134Cs and 137Cs activities in surface water at stations along the coastline near the Fukushima Dai-ichi Nuclear Power Plant accident site, Japan
radiocaesium ocean coast Fukushima geochemistry
2017/4/11
We present our April to December 2011 observations of 134Cs and 137Cs activities in surface water at Hasaki, a coastal
station 180 km south of the Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accid...
Mid-Holocene sea-surface temperature reconstruction using fossil corals from Kume Island, Ryukyu, Japan
Holocene SST coral Sr/Ca East China Seatal proxy
2017/4/11
The relative warmth and stability of the Holocene was punctuated by several brief cold events. Whereas these cold
events on a global scale are widely reported, the lack of records from regions such a...
Characteristics and source of polycyclic aromatic hydrocarbons in the surface hydrothermal sediments from two hydrothermal fields of the Central Indian and Mid-Atlantic Ridges
polycyclic aromatic hydrocarbons inorganic geochemical characteristic hydrothermal sediments Kairei hydrothermal field, Logatchev hydrothermal f
2017/4/11
The analysis of major elements and polycyclic aromatic hydrocarbons (PAHs) were carried out on surface hydrothermal
sediments collected from the Kairei hydrothermal field on the Central Indian Ridge ...
PRETREATMENT OF SOILS AND CLAYS FOR MEASUREMENT OF EXTERNAL SURFACE AREA BY GLYCEROL RETENTION
SOILS CLAYS GLYCEROL RETENTION
2011/11/15
Heat treatment at 600~ has been the usual procedure for irreversible collapse of expanding clay minerals prior to determination of the external surface area of clays and soils by glycerol retention. E...
It has been demonstrated that ferric iron is the principal source of the oxidizing action of the surface of attapulgite clay. The extent of oxidizing action in a- given time (the oxidizing power) has ...
Surface Modification of Acid Activated Polyamide Fiber by Immobilizing Collagen
Collagen Immobilization Polyamide Fiber Surface Modification
2011/12/20
Collagen was immobilized onto moderate acid activated polyamide fibers with glutaraldehyde (cross-linking agent) aimed to improve its sanitary property. The immobilization of collagen onto polyamide f...
Research on the Relief Degree of Land Surface (RDLS) Calibration Coefficient of Highway in Plateau Mountainous Area
Least Square Method (LSM) RDLS RDLS Calibration Coefficient Regression Model Traffic Engineering
2011/12/20
Different reasons leaded to highway circuitous between plateau mountainous area and plain lightly undulate area were analyzed. The main reason which leaded to highway circuitous is the RDLS was conclu...